PM5356 datasheet(39/307 Pages) PMC

39 / 307 page

RELEASED

S/UNI-622-MAX

PMC-Sierra, Inc.

PM5356

S/UNI-622-MAX

DATASHEET

PMC-1980589

ISSUE 6

SATURN USER NETWORK INTERFACE (622-MAX)

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Pin Name

Type

No.

Function

RSOC

Output

P23

The UTOPIA receive start of cell (RSOC) signal

marks the start of a cell structure on the RDAT bus.

In 16-bit Level 2 ATM mode, the first word of the cell

structure is present on the RDAT[15:0] bus when

RSOC is high. RSOC is tri-stated when RENB is

sampled high.

In 8-bit Level 3 ATM mode, the first byte of the cell

structure is present on the RDAT[7:0] bus when

RSOC is high. RDAT[15:8] are invalid and must be

ignored.

RSOC is updated on the rising edge of RFCLK.

RPRTY

Output

P21

The UTOPIA receive parity (RPRTY) signal indicates

the parity of the RDAT bus.

When in 16-bit Level 2 ATM mode, the RPRTY signal

indicates the parity on the RDAT[15:0] bus. RPRTY

is tri-stated when RENB is sampled high. Odd or

even parity selection is made in the RXCP registers.

When in 8-bit Level 3 ATM mode, the RPRTY signal

indicates the parity on the RDAT[7:0] bus. Odd or

even parity selection is made in the RUL3 registers.

RPRTY is updated on the rising edge of RFCLK.

PM5356 데이터시트(PDF) 39 Page - PMC-Sierra, Inc